Answered: when octane (C8H18) is burned under…

when octane (C8H18) is burned under standard conditions, the enthalpy of combustion is -5698.34KJ / mol. Using the information provided. what is the heat of formation of octane?

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter2: Alkanes And Cycloalkanes

Section: Chapter Questions

Problem 2.57P: Following are heats of combustion per mole for methane, propane, and 2,2,4-trimeth-ylpentane. Each...

See similar textbooks

Related questions

Q: 13) Carbon tetrachloride can be formed by reacting chlorine with methane: CH4 + 2 C2 - ca4 + 2 H2…

A: The Heat of Reaction, ΔHºrxn (also known and Enthalpy of Reaction) is the change in the enthalpy of…

Q: .32 The material typically used to heat metal radiators is water. If a boiler generates water at…

Q: Calorimeter can be used to identify a metal by determining its specific heat when a hot pellet of…

A: The amount of heat required to increase the temperature of one kilo gram of a substance by one…

Q: The heat of formation of Fe2O3(s) is -826.0 kJ/mol. Calculate the heat of the reaction 4Fe(s) +…

A: Given information,

Q: A 3.527 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: Given, Mass of the sample = 3.527 g Initial temperature = Ti = 24.87 0C Final temperature = Tf =…

Q: A 2.821 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

Q: A 2.817 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: Given, Mass of sample = 2.817 g Temperature increases from 23.97◦C to 29.14◦C Heat capacity of…

Q: A sample of toluene undergoes combustion in a bomb calorimeter that is insulated by 814 g of water…

A: Given: Mass of water = 814 g. Heat capacity of calorimeter = 1015 J/oC And the increase in the…

Q: For the reaction, N2(g) + 2 O2(g) ➞ 2 NO2(g) , the enthalpy change is 33.9 kJ/mole of NO2 formed.…

A: Enthalpy is a thermodynamic property which is an extensive additive property we are required to find…

Q: If a system produces 123.0 kJ of heat and does 45.0 kJ of work on the surroundings, what is the AE…

Q: The enthalpy change for the reaction of hydrogen gas with fluorine gas to produce hydrogen fluoride…

A: The formation of hydrogen fluoride from hydrogen gas and fluorine gas is expressed as, H2g+F2g→2HFg…

Q: A 1.819 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

Q: A 3.257 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: A sample of aluminum metal absorbs 9.86 J of heat, upon which the temperature of the sample…

Q: If a system absorbs 155.0 kJ of heat from its surroundings and the system does 65.0 kJ of work on…

A: Given that, System absorb heat, so q is positive, so, q=+155.0 KJ also given, system does work, so…

Q: If a system absorbs 155.0 kJ of heat from its surroundings and the system does 45.0 kJ of work on…

A: Internal energy of a system is the overall energy that belongs to the system. Heat is denoted by…

Q: The combustion of hydrogen-oxygen mixtures is used to produce very high temperatures (ca. 2500 °C)…

A: In the given question we have to calculate the quantity of heat evolved in kilojoules when equal…

Q: A scientist measures the standard enthalpy change for the following reaction to be -29.5 kJ: I2(g)…

Q: You wish to heat water to make coffee. How much heat (in joules) must be used to raise the…

A: We have to apply formula Q=mc∆T Here Q is the heat needed to raise temperature c is specific heat m…

Q: The principal component of LPG is butane, C4H10(g). If combustion of 1 mole of butane produces 126…

Q: The heat of combustion for a sample of coal is 24.0 kJ/g. What quantity of coal (in grams) must be…

Q: The specific heat capacity of benzene (C6H6) is 1.74J/g.K. How much energy is required to heat 168g…

A: Specific heat Specific heat of a substance is defied as the amount of the heat is used to increase…

Q: The heat of formation of H2SO4 is -909.27 kj/mol. Give the thermochemical equation for the formation…

A: Here we are required to show the formation of aqueous sulphuric acid

Q: When 1.23g C6H6(l) are burned, 51.5KJ of heat are released. Calculate the enthalpy for this…

A: Heat of formation of the compound can be calculated from the reaction and enthalpy of the reaction .…

Q: Use the thermodynamic data in the table below to calculate how much heat in kJ is required to change…

Q: You wish to heat water to make coffee. How much heat (in joules) must be used to raise the…

A: Given- Weight of water = 0.150 kg = 150 gm (1 kg = 1000 gm) T1= 26°C T2= 97°C Specific heat…

Q: The enthalpy change for heating a one mole sample of an ideal, monoatomic gas at 25°C is 3.75…

A: Enthalpy is the heat content of a system. The enthalpy change of a reaction is roughly equivalent to…

Q: If 50.0g of benzene, C6H6, at 25.0c absorbs 2.71kJ of energy in the form of heat, what is the final…

A: The mass of benzene is = 50.0 g The initial temperature of benzene is = 25oC The amount of heat…

Q: A sample of tin experiences a cemperature change of +60.8 PC while absorbing 672.1 joules of heat.…

A: Specific heat capacity is amount of heat needed to increase the temperature of one gram of substance…

Q: when octane (C8H18) is burned under standard conditions, the enthalpy of combustion is -5578.64KJ /…

A: Given that : The enthalpy of combustion = -5578.64 kJ/mol Heat of formation of octane = ?

Q: A scientist measures the standard enthalpy change for the following reaction to be -819.0 kJ :CH4(g)…

A: The given reaction is, Standard enthalpy of formation of CH4(g), O2(g) and H2O(g) is given below,

Q: A 1.231 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

Q: A gas expands and does P-V work in the surroundings equal to 279 J. At the same time, it absorbs…

Q: A 1.000 g sample of octane (C8H18, molar mass = 114.23 g/mol) is burned in a bomb calorimeter…

Q: The standard enthalpy of combustion of ethanol (C2H5OH) is -235.1 kJ/mol. How many kilojoules of…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: A 5.006 g sample of methanol, CH3OH, was combusted in the presence of excess oxygen in a bomb…

A: Since the question number is not mentioned, we will answer both the questions.

Q: A 3.01 kg aluminum engine block heats up to 129.6 °C. Engine coolant at 21.1 °C is added to prevent…

A: Given data,Mass of Al engine(mAl)=3.01Kg=3010gInitial temperature of Al engine(TAl)=129.6oCInitial…

Q: 4. A 74.8 g sample of copper at 143.2°C is added to an insulated vessel containi 165 mL of glycerol,…

Q: periment, a 1.0150 g sample of L-asorbic acid is burned completely in a bomb calorimeter. The…

A: the heat absorbed or released by a substance is guided by the heat capacity.q=mcTf-Tim is mass of…

Q: A 2.673 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: Tf = 28.80°C Ti = 25.03° C ΔT = Tf - Ti = 28.80° C - 25.03 ° C =…

Q: To heat the water in a hot spring, coal briquettes are used as fuel. Combustion of one kilogram coal…

Q: If a system absorbs 155.0 kJ of heat from its surroundings and the system does 75.0 kJ of work on…

A: Answer :- The change in internal energy of the system is +80.0 kJ.…

Q: 2. Carbon tetrachloride can be formed by reacting chlorine with methane: CH4 + 2 Cl2 → CCL4 + 2 H2…

A: CH4 + 2Cl2-----> CCl4 +2H2 ∆Hof (CH4) = -75 kJ/mol ∆Hof (CCl4 ) = -135 kJ/mol

Q: specific heat of gold is 0.129J/g C. what is molar heat capacity of gold?

A: The Question is about to calculate the Molar Heat Capacity of Gold -

Q: A 1.917 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

Q: 25. The standard molar enthalpy of formation of glucose, C,H12Os), is -1274.4 kJ/mol. a) Is the…

A: Standard molar enthalpy of formation of glucose is the amount of heat energy released or required…

Q: A 237 g sample of molybdenum metal is heated to 100.1 °C and then dropped into an insulated cup…

A: mass of Molybdenum = MMo = 237 gInitial Temperature of Molybdenum =TMo = 100.1°Cmass of water = Mw =…

Q: Consider the combustion of liquid C₅H₈ in oxygen gas to produce carbon dioxide gas and water vapor.…

A: When any hydrocarbon is combusted, it produces a water vapor and carbon dioxide along with heat. In…

Q: Consider the combustion of propane: C,H, (9) + 50 (9) 3CO,(9) + 4H,O(1) AH=-2221 kJ A balloon is…

A: The given data contains, Heat required = 1.4×108 J Assume y grams of propane is being combusted.…

Question

when octane (C8H18) is burned under standard conditions, the enthalpy of combustion is -5698.34KJ / mol. Using the information provided. what is the heat of formation of octane?

A;H°(CO2(g)) =
-399,9 kJ/mol
A;H°(H2O(g)) =
%3D
-244,70 kJ/mol
A¡H°(H2O(1)) =
-312,05 kJ/mol

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

An English chemistry professor needs a cup of hot tea before grading 50 homeworkassignments but his electric water heater is broken . In his lab, however, he doeshave some ethanol (CH3CH2OH, MW=46.07gmol-1) and 1 gram of benzoic acid(C6H5COOH, MW=122.12 gmol-1). He knows that the benzoic acid has an enthalpyof combustion, H, of -3226.7 kJmol-1. In a constant volume (bomb) calorimeterinitially at 293.15 K, he finds that the combustion of 1.000 g of benzoic acidincreased the temperature to 297.67 K. In the exact same calorimeter, 1.000 g ofethanol raised the temperature from 293.15K to 298.38K.(a) What is the enthalpy of combustion for 1 mole of ethanol? I am confused about this question and I need help.
Find the heat of reaction and explain what happen to it. Calculate the ∆H of reaction for: C3H8 (g) + 5O2 (g) => 3CO2 (g) + 4H2O (l) The values of ∆H of reaction are as follows:C3H8 (g) = -103.95 kJ/molCO2 (g) = -393.5 kJ/molH2O (g) = -285.8 kJ/mol Topic: Enthalpy of Reaction
Given the heats of formationDHfo(CO2(g)) = -393.5 kJ/mol,DHfo(H2O(l)) = -285.9 kJ/molDHfoCH3OH(l))) = -238.6 kJ/mol,what is the enthalpy change for CH3OH(l) + 3/2 O2(g) --> CO2(g) + 2 H2O(l)?
Estimate the heat released when ethene(CH2=CH2) reacts with HBr to giveCH3CH2Br. Bond enthalpies areC-H : 412 kJ/mol; C-C : 348 kJ/mol;C=C : 612 kJ/mol; C-Br : 276 kJ/mol;Br-Br : 193 kJ/mol; H-Br : 366 kJ/mol. Choose the correct answer:1. 1036 kJ/mol2. 58 kJ/mol3. 424 kJ/mol4. 200 kJ/mol5. 470 kJ/mol
Isomers are molecules with the same elemental composition but a different atomic arrangement. Three isomers with the formula C4H8 are shown in the models below. The enthalpy of combustion (cH) of each isomer, determined using a calorimeter, is as follows: (a) Draw an energy level diagram relating the energy content of the three isomers to the energy content of the combustion products, CO2(g) and H2O(). (b) Use the cH data in part (a), along with the enthalpies of formation of CO2(g) and H2O() from Appendix L, to calculate the enthalpy of formation for each of the isomers. (c) Draw an energy level diagram that relates the enthalpies of formation of the three isomers to the energy of the elements in their standard states. (d) What is the enthalpy change for the conversion of cis-2-butene to trans-2-butene?
Following are heats of combustion per mole for methane, propane, and 2,2,4-trimeth-ylpentane. Each is a major source of energy. On a gram-for-gram basis, which of these hydrocarbons is the best source of heat energy?
C(s) + O2(g) -> CO2(g) CH4(g) -> C(s) + 2 H2(g) ∆Hrxn= +74.6 kJ/mol H2(g) + ½ O2(g) ->H2O(l) ∆Hrxn = −285.8 kJ/mol CH4(g) + 2 O2(g) -> CO2(g) + 2 H2O(l) ∆Hrxn = −890.5 kJ/mol 4) Let’s calculate heat of combustion for propane, C3H8, at thermodynamic standard state – first, we need the balanced chemical equation: C3H8(g) + O2(g) -> CO2(g) + H20(l) Use some of the reactions above and the reaction below for the formation of propane (C3H8) to determine the heat of combustion for propane (i.e DH for balanced equation you wrote above). C3H8(g) -> 3 C(s) + 4 H2(g) ΔHrxn = +103.9 kJ/mol
Calculate the ∆Hof of C6H12O6(s) from the following data: ∆H combustion of C6H12O6(s) = -2816kJ/mol ∆Hof of CO2 (g) = -393.5 kJ/mol ∆Hof of H2O(l) = -285.9 kJ/mol Equation: C6H12O6(s) + O2(g) → CO2(g) + H2O(g)
6H2O + 6CO2 --> C6H12O6 + 6O2 H=+2803kJ/mol calculate the amount of sunlight energy required (in kJ) by a plant to synthesize 75.0g of glucose (C6H12O6)
Directions: Explain your answer comprehensively. Limit your justification in 3-5 sentences. 1. What does it mean to have a lower enthalpy? Does the energy be released or absorbed? Explain.
6H2O + 6CO2 --> C6H12O6 + 6O2 H=+2803 kJ/mol calculate the amount of sunlight energy required (in kJ) by a plant to synthesize 75.0g of glucose (C6H12O6)
Enter your answer in the provided box. Acetylene burns in air according to the following equation: C2H2(g) + 5 2 O2(g) → 2 CO2(g) + H2O(g) Δ H o rxn = −1255.8 kJ Given Δ H o f of CO2(g) = −393.5 kJ/mol and Δ H o f of H2O(g) = −241.8 kJ/mol, find Δ H o f of C2H2(g).